Cool anecdote, for me it has slowed me down 8x to 23x since I started using it in real projects with real customers in a real code base last year.
So 1-1 in pointless personal anecdotes.
Now show us the numbers! How did you measure this? Can u show 2x/5x increase in projects/orders/profits/stock price?
I'm not really sure I understand your counter argument. Pretty much everything about personal productivity is anecdotes because it's so uniquely tied to an individual. I showed you my numbers - I am 2x to 5x faster at delivering projects.